ea0081p174 | Pituitary and Neuroendocrinology | ECE2022
Mangili Federica
, Esposito Emanuela
, Treppiedi Donatella
, Catalano Rosa
, Marra Giusy
, Di Muro Genesio
, Maria Barbieri Anna
, Locatelli Marco
, Gerardo Lania Andrea
, Spada Anna
, Arosio Maura
, Mantovani Giovanna
, Peverelli Erika
The mTOR inhibitor everolimus has been shown to display antimitotic effects on diverse neoplasms, including pituitary neuroendocrine tumors (PitNETs); however, its effect is reduced by an escape mechanism that increases AKT phosphorylation (P-AKT) leading to survival pathway activation. Dopamine receptor type 2 (DRD2) reduces p-AKT in some non-functioning PitNETs (NF-PitNETs) and in lactotrophs MMQ cells, through a α-arrestin 2-dependent mechanism. This study aim...